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bekas [8.4K]
3 years ago
9

How do the muscles in the human body help with movement? A. Muscles contract and thus pull on bones to cause movement. B. They b

end the bones. C. The bones are contracted by the muscles. D. They help push the bones apart using ligaments.
Biology
1 answer:
natta225 [31]3 years ago
3 0
The answer is A. because the muscles pull the bones since they are attached.
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Describe how Mendel's two laws are illustrated by the movement of chromosomes in meiosis. Drag the terms on the left to the appr
nirvana33 [79]

Answer:

1. law of Independent Assortment; metaphase I; independent of.

2. law of Segregation; meiosis I; in separate gametes.

Explanation:

Between 1856 and 1863, Gregor Mendel developed a series of mating experiments using pea plants, which enabled the discovery of some basic principles of inheritance. These principles/laws are stated as:

1) Law of segregation: this principle states that the inheritance pattern of phenotypic traits is characterized by the presence of a gene pair and each gamete carries only one allele for each gene pair so offspring inherit one gene variant (allele) from each parent  

2) Law of independent assortment: this principle states that the genes responsible for the inheritance pattern of different traits are independently sorted from one another and thereby different traits are independent one from another.

3) Law of dominance: this principle states that the dominant allele will always be expressed in heterozygous individuals (this law is only applicable in cases of complete dominance).

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3 years ago
What describes a result of the greenhouse effect?
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The greenhouse effect occurs when rays enter our atmosphere and are reflected from the ground up. They get changed during their voyage through our atmosphere and they change in such a way that they can't leave the atmosphere anymore. Then they stay inside and heat up the planet which causes thing like global warming. That's what the greenhouse effect is.
4 0
3 years ago
The features of a process in cell division are described below.
Step2247 [10]

The cell process is being described is cytokinesis.

6 0
3 years ago
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ruslelena [56]

Answer:

The enzyme shows increased activity up to a certain temperature.

Explanation:

An enzyme is mostly a protein molecule/a biologist catalyst that speeds up the rate of a chemical reaction in a cell.

Enzymes lower the reaction's activation energy by attaching to the reactant molecule and positioning itself in a manner that readily facilitates chemical-bond breaking and forming process.

As the temperature increases, the rate of enzyme catalyzed reaction increases up to a maximum level (optimum temperature) and then decreases abruptly with any further temperature increase.This optimum temperature is 40°C for most animal enzymes.The abrupt decline in the rate of reaction after the optimum temperature is caused by the denaturing of enzymes by temperatures above 40°C.

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A herd of cattle is an example of
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An example of a herd is a group of people who all dress and act in a similar way.

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3 years ago
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